public void Start() { GooglePlayDownloader.Init(PublicKeyFromGooglePlay); if (GooglePlayDownloader.RunningOnAndroid()) { string expPath = GooglePlayDownloader.GetExpansionFilePath(); if (expPath != null) { string mainPath = GooglePlayDownloader.GetMainOBBPath(expPath); if (mainPath == null) { GooglePlayDownloader.DeleteAllOldOBBs(expPath); GooglePlayDownloader.FetchOBB(); } } } }